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Ambient particle source apportionment and daily hospital admissions among children and elderly in Copenhagen

Journal of Exposure Science & Environmental Epidemiology volume 17, pages 625–636 (2007)Cite this article

Abstract

An association between particulate air pollution and morbidity and mortality is well established. However, little is known about which sources of particulate matter contribute most to the adverse health effects. Identification of responsible sources would merit more efficient control. For a 6-year period (01 January 1999 to 31 December 2004), we examined associations between urban background PM10 in the presence of gaseous pollutants (CO, NO2) and hospital admissions due to cardiovascular and respiratory disease in the elderly (age≥65), and asthma in children (age 5–18) in Copenhagen, Denmark. We further studied associations between fractions of PM10 assigned to six sources (biomass, secondary, oil, crustal, sea salt, and vehicle) and admissions during a 1½ -year campaign. We used Poisson generalized additive time-series model adjusted for season, day of the week, public holidays, influenza epidemics, grass pollen, school holidays, and meteorology, with up to 5 days lagged air pollution exposure. We found positive associations between PM10 and the three health outcomes, with strongest associations for asthma. The PM10 effect remained robust in the presence of CO and NO2. We found different PM10 sources to be variably associated with different outcomes: crustal and secondary sources showed strongest associations with cardiovascular, biomass with respiratory, and vehicle with asthma admissions. These novel results may merit future research of potential mechanism, whereas at present, no single PM10 source can be attributed to all morbidity.

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Acknowledgements

This study was supported by the Danish Research Council grant and by the Danish Research Council grant number 2052–03–16, AIRPOLIFE (Air Pollution in a Life Time Health Perspective).

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Authors and Affiliations

  1. Department of Biostatistics, Copenhagen University, Copenhagen, Denmark

    Zorana J Andersen & Thomas Scheike

  2. Department of Occupational and Environmental Health, Copenhagen University, Copenhagen, Denmark

    Zorana J Andersen & Steffen Loft

  3. Department of Atmospheric Environment, National Environmental Research Institute, Roskilde, Denmark

    Peter Wahlin

  4. Institute of Cancer Epidemiology, The Danish Cancer Society, Copenhagen, Denmark

    Ole Raaschou-Nielsen

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  1. Zorana J Andersen
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  2. Peter Wahlin
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  3. Ole Raaschou-Nielsen
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Correspondence to Zorana J Andersen.

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Andersen, Z., Wahlin, P., Raaschou-Nielsen, O. et al. Ambient particle source apportionment and daily hospital admissions among children and elderly in Copenhagen. J Expo Sci Environ Epidemiol 17, 625–636 (2007). https://doi.org/10.1038/sj.jes.7500546

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